GSB LTD Address: No 21, Hang Trong Street, Hang Trong Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0107254007 Phone: 02466623484; 098783470109 Representative: Bui Quang Tuan Adress: No 21 Hang Trong, Hang Trong Ward, Hoan Kiem District, Ha Noi City Hang Trong Ward, Hoan Kiem District, Ha Noi CityFounding date: 17 - 12 - 2015